List of American zoos by A Lindsay; Report of a visit to New York and Chicago (1936); 'Notes on visits to some foreign zoos, 1934 and 1935' by Huxley (covering New York Bronx, Philadelphia, Washington, Paris Vincennes, Hamburg, Berlin, Munich Hellabrun, & Frankfurt); extract from report on the British Colonial Exhibit, World's Fair, New York, 1939; Report on visit to Austria and Germany by D Seth Smith (c1937); Report on a visit to the Zoological Gardens at Antwerp, Rotterdam and Amsterdam (1935); Report on a visit to France (1938); letter from Chalmers Mitchell to the Directors of Zoological Gardens in Germany, introducing Huxley, 1935; handwritten notes on zoos; notebook; 'La Reproduction des Animaux Sauvages en Captivite' by A Urbain; Report on visit to Brookfield Zoo (1940); guide to Internationalen Jagdaustellung, Berlin, 1937.

Includes: memos from the Layout Committee; letters from Lubetkin to Huxley; costings; Contract with Tecton; copy of 'The Architect and Building News', June 1944; handwritten notes; specifications. Includes correspondence with Burnet, Tait and Lorne; and with Tecton. Also mentions other abandoned schemes by Tecton for Gibbon House, Children's Zoo, South Gate. Includes correspondence between Huxley and the Maharajah of Bhavnagar and J Ellerman about funding; with Sir Harry Boyd of the Home Office concerning Royal patronage. Correspondence with Zoo Directors in Chicago, Dresden, Stellingen about their elephant houses.